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<title>FatFs - disk_status</title>
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<div class="para func">
<h2>disk_status</h2>
<p>The disk_status function returns the current disk status.</p>
<pre>
DSTATUS disk_status (
  BYTE <span class="arg">pdrv</span>     <span class="c">/* [IN] Physical drive number */</span>
);
</pre>
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<div class="para arg">
<h4>Parameter</h4>
<dl class="par">
<dt>pdrv</dt>
<dd>Specifies the physical drive number to be confirmed.</dd>
</dl>
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<div class="para ret">
<h4>Return Values</h4>
<p>The disk status is returned in combination of following flags. FatFs refers only <tt>STA_NOINIT</tt> and <tt>STA_PROTECTED</tt>.</p>
<dl class="ret">
<dt>STA_NOINIT</dt>
<dd>Indicates that the disk drive is not initialized. This flag is set on system reset, media removal or failure of <tt>disk_initialize()</tt> function. It is cleared on <tt>disk_initialize()</tt> function succeeded. Media change that occurs asynchronously must be captured and reflect it to the status flags, or auto-mount feature will not work correctly. When media change detection feature is not supported, application program needs to de-initialize the file system object with <tt>f_mount()</tt> function after the media change.</dd>
<dt>STA_NODISK</dt>
<dd>Indicates that no medium in the drive. This is always cleared on fixed disk drive. Note that FatFs does not refer this flag.</dd>
<dt>STA_PROTECTED</dt>
<dd>Indicates that the medium is write protected. This is always cleared on the drive that does not support write protect notch. Not valid while no medium in the drive.</dd>
</dl>
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